Matthias, The libsodium library is an optional dependency for libzmq, used for CURVE authentication/encryption. It is not necessary unless you wish to use this mode of encryption.
Regarding your error message - it looks to be related to protobuf, and not to libzmq. On Sat, Mar 7, 2015 at 3:11 PM, Matthias Brzezinski < [email protected]> wrote: > Hey, > actually I had some time trying out if the library works and I was wrong - > it does not work. The library throws many undefined reference errors when > I'm not using LOCAL_ALLOW_UNDEFINED_SYMBOLS := true > In the case I'm using it, my program will crash on startup with the error > "cannot locate symbol > "_ZN6google8protobuf15UnknownFieldSet13ClearFallbackEv". > I'm just loading both static libraries - sodium and zmq - into my project > like I normally do with libraries. > > Probably someone has another Idea why zeromq does not work with the NDK. > > With Regards, > Matthias > > Am 06.03.2015 um 19:25 schrieb Matthias Brzezinski: > > Hey Joe, > thank you for your answer. > I've looked through your script and it helped me verifying that I did not > miss a flag, a step or something i was not considering yet. > Generally it doesn't matter if I compile a static or a shared library - > The NDK uses its own linker to link the prebuilt libraries. > > Am 06.03.2015 um 18:17 schrieb Joe McIlvain: > > Matthias, > > I don't usually compile them as static, but you may be able to get some > ideas/help from using or looking at the scripts I added under > `builds/qt-android`of the zeromq repository. I use these to compile for > use with Qt on android, but there's nothing really Qt-specific about them. > I only added them because the android scripts didn't work for me. They > didn't seem to be > > The syntax for the android makefiles are a bit different, but I used the > same flags as far I can see. Hence, I never worked with qt before. > What exactly didn't work with the android scripts? Did you have problems > getting the NDK to work generally, or just the NDK in combination with > ZeroMQ? I hope for the first, because it would be a mess if I wouldn't find > a way to use ZeroMQ with native code and the NDK where for example the > protobuf library compiled on the first try. > > With regards, > Matthias > > maintained, but I didn't want to clobber something that someone out there > might be relying on. > > I don't know a lot about the android toolchain because working with Qt > hides a lot of the platform-specific stuff from me, but I learned just > enough about the toolchain to make those scripts work and get them into the > CI for the repository. > > > On Fri, Mar 6, 2015 at 6:30 AM, Matthias Brzezinski < > [email protected]> wrote: > >> Hey, >> I'm having issues linking ZeroMQ into my shared library for Android. >> >> I followed the steps on http://zeromq.org/build:android to build the >> static library. I tried it with the recommended NDKr8 but also tried it >> with the NDK10d. I've build the static library for arm with the official >> ndk-toolchain. >> Afterwards I try to link thoose libraries into my shared library to >> compile a bunch of cpp files. >> I've successfully compiled and linked different static libraries into my >> projects so I'm pretty confused why the linker throws the Error when I work >> with ZeroMQ. I've omitted the other working libraries. >> My Android.mk: >> http://pastebin.com/N7gueqre >> >> My Application.mk: >> http://pastebin.com/nNgCYM2F >> >> In both code blocks I've ommited everything that is not necessary for >> solving this issue. The error message stays the same. I've tried to build >> the shared library under windows and later under debian and ubuntu. The >> error message is: >> >> >> /tmp/android-ndk-r10d/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.9/../../../../arm-linux-androideabi/bin/ld: >> error: ./zmq/lib /libzmq.a(libzmq_la-zmq.o): incompatible target >> collect2: error: ld returned 1 exit status >> make: *** [obj/local/armeabi/libzmqTest.so] Error 1 >> (I guess 3 lines are not worth a pastebin) >> >> I'm working on Windows 8.1 with Android Studio 1.1. I've compiled the >> libraries under Linux Mint 16, a up-to-date ubuntu system and an old debian >> server. >> I build zeromq3-x and zeromq4-x. >> >> Any idea is welcome and appreciated. >> >> If this is not the right place to ask such a question, please tell me >> where to ask it instead. >> >> With regards, >> Matthias >> >> >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev >> >> > > > _______________________________________________ > zeromq-dev mailing > [email protected]http://lists.zeromq.org/mailman/listinfo/zeromq-dev > > > > > _______________________________________________ > zeromq-dev mailing > [email protected]http://lists.zeromq.org/mailman/listinfo/zeromq-dev > > > > _______________________________________________ > zeromq-dev mailing list > [email protected] > http://lists.zeromq.org/mailman/listinfo/zeromq-dev > >
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